#include <iostream>
using namespace std;
class Student
{
    private:
       int age;
    public:
        Student(int age)
        {
            this->age = age;
        }
    Student operator+(Student  a)
    {
        Student temp(10);
        temp.age = this->age + a.age;
        return temp;
    }
    
};
void f(Student & s)
{
    cout<<endl;
}
int main()
{
    Student s1(10);
    Student s2(20);
    Student s3 = s1 + s2;
    cout<<"bye"<<endl;
}